2010 INFINITI QX56 Factory Service Manual

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Page 4065 of 4210

INFINITI QX56 2010 Factory Service Manual WCS-66
< SYMPTOM DIAGNOSIS >
THE LIGHT REMINDER WARNING DOES NOT SOUND
SYMPTOM DIAGNOSIS
THE LIGHT REMINDER WARNING DOES NOT SOUND
DescriptionINFOID:0000000005146175
Light reminder warning does not so

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INFINITI QX56 2010 Factory Service Manual WCS
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
WCS-67
< SYMPTOM DIAGNOSIS >
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THE SEAT BELT WARNING CONTIN UES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOI

Page 4067 of 4210

INFINITI QX56 2010 Factory Service Manual WCS-68
< SYMPTOM DIAGNOSIS >
THE KEY WARNING DOES NOT SOUND
THE KEY WARNING DOES NOT SOUND
DescriptionINFOID:0000000005146179
Key warning does not sound even though key is in ignition and front door L

Page 4068 of 4210

INFINITI QX56 2010 Factory Service Manual WCS
PRECAUTIONSWCS-69
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:00000000052

WCS
PRECAUTIONSWCS-69
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005238466
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Necessary for Steering Wheel Ro tation After Battery DisconnectINFOID:0000000005238467
NOTE:
• Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnect ed or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon- nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
Revision: April 20092010 QX56

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INFINITI QX56 2010 Factory Service Manual WCS-70
< PRECAUTION >
PRECAUTIONS
6. Perform self-diagnosis check of all control units using CONSULT-III.
Revision: April 20092010 QX56

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INFINITI QX56 2010 Factory Service Manual WT-1
SUSPENSION
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SECTION WT
A
B
WT
N
O PCONTENTS
ROAD WHEELS & TIRES
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Repair Work

WT-1
SUSPENSION
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SECTION WT
A
B
WT
N
O PCONTENTS
ROAD WHEELS & TIRES
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Repair Work Flow ................................................ ......3
INSPECTION AND ADJUSTMENT .....................5
Preliminary Check ............................................... ......5
Transmitter Wake Up Operation ...............................5
ID Registration Procedure .........................................6
FUNCTION DIAGNOSIS ...............................8
TPMS .............................................................. .....8
System Diagram .................................................. ......8
System Description ...................................................8
System Component .................................................10
DIAGNOSIS SYSTEM (BCM) ............................11
CONSULT-III Function (BCM) ............................. ....11
Self-Diagnosis (Without CONSULT-III) ...................12
COMPONENT DIAGNOSIS .........................14
C1708 - C1711 DATA FROM TRANSMITTER
NOT BEING RECEIVED ................................. ....
14
Description .......................................................... ....14
DTC Logic ...............................................................14
Diagnosis Procedure ...............................................14
Special Repair Requirement ...................................15
C1712 - C1715, C1720 - C1723, C1724 -
C1727 TRANSMITTER MALFUNCTION ....... ....
16
Description .......................................................... ....16
DTC Logic ...............................................................16
Diagnosis Procedure ...............................................16
Special Repair Requirement ...................................17
C1716 - C1719 TRANSMITTER PRESSURE
MALFUNCTION .............................................. ....
18
Description .......................................................... ....18
DTC Logic ...............................................................18
Diagnosis Procedure ...............................................18
Special Repair Requirement ................................ ....18
C1729 VEHICLE SPEED SIGNAL ....................19
Description ...............................................................19
DTC Logic ................................................................19
Diagnosis Procedure ...............................................19
Special Repair Requirement ....................................19
C1735 IGNITION SIGNAL .................................20
Description ...............................................................20
DTC Logic ................................................................20
Diagnosis Procedure ...............................................20
Special Repair Requirement ....................................20
ECU DIAGNOSIS .........................................21
BCM (BODY CONTROL MODULE) .................21
Reference Value .................................................. ....21
Terminal Layout .......................................................24
Physical Values ................................................... ....24
Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - ........................................................
30
Self-Diagnosis (With CONSULT-III) .................... ....33
Self-Diagnosis (Without CONSULT-III) ...................34
SYMPTOM DIAGNOSIS ..............................36
TPMS .................................................................36
Symptom Table ................................................... ....36
LOW TIRE PRESSURE WARNING LAMP
DOES NOT TURN ON .......................................
37
Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................
37
LOW TIRE PRESSURE WARNING LAMP
STAYS ON ........................................................
38
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ............................... ....
38
LOW TIRE PRESSURE WARNING LAMP
BLINKS .............................................................
39
Revision: April 20092010 QX56

Page 4071 of 4210

INFINITI QX56 2010 Factory Service Manual WT-2
Low Tire Pressure Warning Lamp Flashes When
Ignition Switch Is Turned On ..................................
39
HAZARD WARNING LAMPS FLASH ...............40
Hazard Warning Lamps Flash When Igni

WT-2
Low Tire Pressure Warning Lamp Flashes When
Ignition Switch Is Turned On ..................................
39
HAZARD WARNING LAMPS FLASH ...............40
Hazard Warning Lamps Flash When Ignition
Switch Is Turned On ............................................ ...
40
"TIRE PRESSURE" INFORMATION IN DIS-
PLAY UNIT DOES NOT EXIST .........................
41
"TIRE PRESSURE" Information in Display Unit
Does Not Exist ..................................................... ...
41
ID REGISTRATION CANNOT BE COMPLET-
ED ......................................................................
42
ID Registration Cannot Be Completed ................ ...42
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... ...
43
NVH Troubleshooting Chart ................................ ...43
PRECAUTION .............................................44
PRECAUTIONS .............................................. ...44
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
44
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
44
PREPARATION ..........................................46
PREPARATION .............................................. ...46
Special Service Tool ............................................ ...46
Commercial Service Tool ........................................46
ON-VEHICLE MAINTENANCE ..................47
WHEEL ........................................................... ...47
Inspection ............................................................. ...47
ON-VEHICLE REPAIR ...............................48
WHEEL AND TIRE ASSEMBLY .................... ...48
Balancing Wheels ................................................ ...48
Rotation ...................................................................49
REMOVAL AND INSTALLATION ..............50
REMOVAL AND INSTALLATION .................. ...50
Transmitter (Pressure Sensor) ............................. ...50
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................. ...............
52
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
52
Road Wheel ......................................................... ...52
Tire ..........................................................................52
Revision: April 20092010 QX56

Page 4072 of 4210

INFINITI QX56 2010 Factory Service Manual DIAGNOSIS AND REPAIR WORKFLOWWT-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work FlowINFOID:0000000005148202
WORK FLOW
DETAILED FLOW
1.

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